VarCalc
Variable calculator for formulas & scenarios.
Create, save, tweak — understand results instantly.
Installable as an app (PWA) — with offline mode on the go.
Start the calculator nowVarCalc is currently in beta.
If you notice anything (bugs, incorrect behaviour), please report it — ideally with a short description and a screenshot via the Feedback menu item.
Thanks for your support!
Variables & formulas
Define variables once — changes take effect everywhere immediately. Plus lots of functions like log, sin, fact or clamp.
Test scenarios quickly
Use sliders for quick estimates and what‑if checks — ideal when values change constantly.
Stay organised
Keep an overview with folders and drag & drop — so you can find the right calculators fast.
Sync across devices
Your calculators can be available on all devices — seamless between PC, tablet and smartphone. Supporters can optionally also sync variable values per calculator (off by default).
Sharing & templates
Share calculators with share groups (e.g. team/project) or use templates from the community — for recurring tasks in seconds.
Works everywhere
Install VarCalc as an app on your phone. Works great offline too.
Privacy first
Your calculations run locally in the browser. You stay in control — secure, private, and without unnecessary data sharing.
Export
Export individual calculators as a varcalc file — useful for sharing, archiving or as a template.
Start for free
Start right away with the free plan — no credit card required. If you need more, you can upgrade to Premium anytime.